| Lasius niger var. alienoniger Forel, 1874 |
| Lasius niger var. americanus Emery, 1893 |
| Lasius niger var. minimus Kuznetsov-Ugamsky, 1928 |
| Lasius nigerrima (Christ, 1791) |
| Lasius occidentalis Wheeler, 1909 |
| Lasius pallitarsis (Provancher, 1881) |
| Lasius silvestrii Wheeler, 1928 |
| Lasius sitiens Wilson, 1955 |
| Lasius sitkaensis Pergande, 1900 |
| Lasius subumbratus Viereck, 1903 |
| Lasius transylvanica Röszler, 1943 |
| Lasius umbratus (Nylander, 1846) |
| Lasius umbratus subsp. subumbratus Viereck, 1903 |
| Leiopelta Baroni Urbani, 1975 |
| Leptalea Erichson |
| Leptaleinae Smith, 1951 |
| Leptanilloides Mann, 1923 |
| Leptanilloides gracilis Borowiec & Longino, 2011 |
| Leptogenys Roger, 1861 |
| Leptogenys (Lobopelta) Mayr, 1862 |